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<p>Jean-paul,<br>
<br>
I am unable to reproduce on my 32 bit Linux. When did it start to fail? The only change I have put in recently is in a bit of code that fiber would not visit.<br>
<br>
John Forrest<br>
<br>
<img width="16" height="16" src="cid:1__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt="Inactive hide details for "Watson, Jean-paul" ---10/07/2009 04:44:03 PM---Hi, I am obtaining the following error via CBC 2.3 st"><font color="#424282">"Watson, Jean-paul" ---10/07/2009 04:44:03 PM---Hi, I am obtaining the following error via CBC 2.3 stable (built as of this AM following an svn upda</font><br>
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<font size="2" color="#5F5F5F">From:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">"Watson, Jean-paul" <jwatson@sandia.gov></font></td></tr>
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<font size="2" color="#5F5F5F">To:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">"cbc@list.coin-or.org" <cbc@list.coin-or.org></font></td></tr>
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<font size="2" color="#5F5F5F">Date:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">10/07/2009 04:44 PM</font></td></tr>
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<font size="2" color="#5F5F5F">Subject:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">[Cbc] Error on "fiber" miplib2003 instance with CBC 2.3 stable</font></td></tr>
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<font size="2" color="#5F5F5F">Sent by:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFCDADFA25BCA8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">cbc-bounces@list.coin-or.org</font></td></tr>
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<font face="Calibri">Hi,</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">I am obtaining the following error via CBC 2.3 stable (built as of this AM following an svn update) on the miplib2003 “fiber.mps” instance (on a vanilla redhat 64-bit linux system):</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Coin:import fiber.mps</font><br>
<font face="Calibri">At line 1 NAME fiber</font><br>
<font face="Calibri">At line 2 ROWS</font><br>
<font face="Calibri">At line 367 COLUMNS</font><br>
<font face="Calibri">At line 2491 RHS</font><br>
<font face="Calibri">At line 2522 BOUNDS</font><br>
<font face="Calibri">At line 3777 ENDATA</font><br>
<font face="Calibri">Problem fiber has 363 rows, 1298 columns and 2944 elements</font><br>
<font face="Calibri">Coin:solve</font><br>
<font face="Calibri">Continuous objective value is 156083 - 0.00 seconds</font><br>
<font face="Calibri">Cgl0002I 3 variables fixed</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 4 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 3 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 2 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 1 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 1 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 1 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0003I 0 fixed, 0 tightened bounds, 1 strengthened rows, 0 substitutions</font><br>
<font face="Calibri">Cgl0004I processed model has 290 rows, 1055 columns (1055 integer) and 2465 elements</font><br>
<font face="Calibri">Cbc0006I The LP relaxation is infeasible or too expensive</font><br>
<font face="Calibri">Cuts at root node changed objective from 1.79769e+308 to -1.79769e+308</font><br>
<font face="Calibri">Probing was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">Knapsack was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">FlowCover was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)</font><br>
<font face="Calibri">Result - Finished objective 3983 after 0 nodes and 0 iterations - took 0.05 seconds (total time 4.83)</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">The LP relaxation is definitely feasible, and it doesn’t look all that expense based on statistics. </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Any ideas?</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Thanks,</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Jean-Paul</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">--</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Dr. Jean-Paul Watson</font><br>
<font face="Calibri">Discrete Math and Complex Systems Department</font><br>
<font face="Calibri">Sandia National Laboratories</font><br>
<font face="Calibri">P.O. Box 5800, MS 1318</font><br>
<font face="Calibri">Albuquerque, NM 87185-1318</font><br>
<font face="Calibri">(505) 845-8887</font><br>
<font face="Calibri">jwatson@sandia.gov</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri"> </font><br>
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